Upgrade khoj.el workflow to use Python 3.11

.github/workflows/build_khoj_el.yml

@@ -21,9 +21,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.9
+    - name: Set up Python 3.11
       uses: actions/setup-python@v1
-      with: { python-version: 3.9 }
+      with: { python-version: 3.11 }
     - name: ⏬️ Install Dependencies
       run: |
         python -m pip install --upgrade pip

.github/workflows/pre-commit.yml

@@ -31,7 +31,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Set up Python
+      - name: Set up Python 3.11
         uses: actions/setup-python@v4
         with:
           python-version: 3.11